import datetime

from odoo import fields
from odoo.tests import tagged, Form
from odoo.exceptions import ValidationError
from odoo.addons.l10n_it_edi.tests.common import TestItEdi


@tagged('post_install_l10n', 'post_install', '-at_install')
class TestWithholdingAndPensionFundTaxes(TestItEdi):

    @classmethod
    def setUpClass(cls):
        super().setUpClass()

        def find_tax_by_ref(ref_name):
            return cls.env['account.chart.template'].with_company(cls.company).ref(ref_name)

        cls.withholding_sale_tax = find_tax_by_ref('20vwc')
        cls.withholding_purchase_tax = find_tax_by_ref('20awc')
        cls.withholding_sale_tax_23 = find_tax_by_ref('23vwo')
        cls.pension_fund_sale_tax = find_tax_by_ref('4vcp')
        cls.enasarco_sale_tax = find_tax_by_ref('enasarcov')
        cls.withholding_purchase_tax_23 = find_tax_by_ref('23awo')
        cls.enasarco_purchase_tax = find_tax_by_ref('enasarcoa')
        cls.inps_tax = find_tax_by_ref('4vinps')
        cls.inps_purchase_tax = find_tax_by_ref('4ainps')

        cls.zero_tax = cls.env['account.tax'].with_company(cls.company).create({
            'name': 'ZeroTax',
            'sequence': 31,
            'type_tax_use': 'sale',
            'amount': 0.0,
            'amount_type': 'percent',
            'l10n_it_exempt_reason': 'N2.2',
            'invoice_legal_notes': 'Fatture emesse o ricevute da contribuenti forfettari o minimi',
        })

        cls.withholding_sale_line = {
            'name': 'withholding_line',
            'quantity': 1,
            'tax_ids': [(6, 0, [
                cls.withholding_sale_tax.id,
                cls.company.account_sale_tax_id.id,
            ])]
        }

        cls.pension_fund_sale_line = {
            'name': 'pension_fund_line',
            'quantity': 1,
            'tax_ids': [(6, 0, [
                cls.withholding_sale_tax.id,
                cls.pension_fund_sale_tax.id,
                cls.company.account_sale_tax_id.id,
            ])]
        }

        cls.enasarco_sale_line = {
            'name': 'enasarco_line',
            'quantity': 1,
            'tax_ids': [(6, 0, [
                cls.enasarco_sale_tax.id,
                cls.withholding_sale_tax_23.id,
                cls.company.account_sale_tax_id.id,
            ])]
        }

        cls.inps_sale_line = {
            'name': 'inps_line',
            'quantity': 1,
            'tax_ids': [(6, 0, [cls.inps_tax.id, cls.zero_tax.id])]
        }

        cls.invoice_lines = [
            ('Ordinary accounting service for the year', 350.0),
            ('Balance deposit for the past year', 300.0),
            ('Ordinary accounting service for the trimester', 50.0),
            ('Electronic invoices management', 50.0),
        ]

        cls.withholding_tax_invoice = cls.env['account.move'].with_company(cls.company).create({
            'move_type': 'out_invoice',
            'company_id': cls.company.id,
            'partner_id': cls.italian_partner_a.id,
            'invoice_date': datetime.date(2022, 3, 24),
            'invoice_date_due': datetime.date(2022, 3, 24),
            'invoice_line_ids': [
                (0, 0, {
                    **cls.withholding_sale_line,
                    'name': name,
                    'price_unit': price,
                }) for (name, price) in cls.invoice_lines
            ],
        })

        cls.pension_fund_tax_invoice = cls.env['account.move'].with_company(cls.company).create({
            'move_type': 'out_invoice',
            'company_id': cls.company.id,
            'partner_id': cls.italian_partner_a.id,
            'invoice_date': datetime.date(2022, 3, 24),
            'invoice_date_due': datetime.date(2022, 3, 24),
            'invoice_line_ids': [
                (0, 0, {
                    **cls.pension_fund_sale_line,
                    'name': name,
                    'price_unit': price,
                }) for (name, price) in cls.invoice_lines
            ]
        })

        cls.enasarco_tax_invoice = cls.env['account.move'].with_company(cls.company).create({
            'move_type': 'out_invoice',
            'company_id': cls.company.id,
            'partner_id': cls.italian_partner_a.id,
            'invoice_date': datetime.date(2022, 3, 24),
            'invoice_date_due': datetime.date(2022, 3, 24),
            'invoice_line_ids': [
                (0, 0, {
                    **cls.enasarco_sale_line,
                    'name': name,
                    'price_unit': price,
                }) for (name, price) in cls.invoice_lines
            ]
        })

        cls.inps_tax_invoice = cls.env['account.move'].with_company(cls.company).create({
            'move_type': 'out_invoice',
            'company_id': cls.company.id,
            'partner_id': cls.italian_partner_a.id,
            'invoice_date': datetime.date(2022, 3, 24),
            'invoice_date_due': datetime.date(2022, 3, 24),
            'invoice_line_ids': [
                (0, 0, {
                    **cls.inps_sale_line,
                    'name': name,
                    'price_unit': price,
                }) for (name, price) in cls.invoice_lines
            ]
        })

        cls.withholding_tax_invoice._post()
        cls.pension_fund_tax_invoice._post()
        cls.enasarco_tax_invoice._post()
        cls.inps_tax_invoice._post()

    def test_withholding_tax_change(self):
        tax_form = Form(self.env['account.tax'])
        name = "Test Withholding"

        tax_form.name = name
        tax_form.amount = -2.00
        tax_form.l10n_it_withholding_type = 'RT01'
        tax_form.l10n_it_withholding_reason = False
        with self.assertRaises(ValidationError):
            tax_form.save()

        tax_form.l10n_it_withholding_reason = "A"
        tax = tax_form.save()
        self.assertRecordValues(tax, [{
            'name': name,
            'amount': -2.00,
            'l10n_it_withholding_type': 'RT01',
            'l10n_it_withholding_reason': 'A',
        }])

        tax_form.l10n_it_withholding_type = False
        tax = tax_form.save()
        self.assertRecordValues(tax, [{
            'name': name,
            'amount': -2.00,
            'l10n_it_withholding_type': False,
            'l10n_it_withholding_reason': False,
        }])

    def test_withholding_tax_constraints(self):
        with self.assertRaises(ValidationError):
            self.withholding_sale_tax.amount = 10
        with self.assertRaises(ValidationError):
            self.withholding_sale_tax.l10n_it_withholding_type = False
        with self.assertRaises(ValidationError):
            self.withholding_sale_tax.l10n_it_withholding_reason = False
        with self.assertRaises(ValidationError):
            self.company.account_sale_tax_id.l10n_it_withholding_type = "RT02"

    ####################################################
    # WITHHOLDING TAX
    ####################################################

    def test_withholding_taxes_export(self):
        """
            Invoice
            -------------------------------------------------------------
            Ordinary accounting service for the year               350.00
            Balance deposit for the past year                      300.00
            Ordinary accounting service for the trimester           50.00
            Electronic invoices management                          50.00
            -------------------------------------------------------------
            Total untaxed:                                         750.00
            Withholding:     20% of Untaxed Amount                -150.00
            VAT:             22% of Untaxed Amount                 165.00
            Document total:  Untaxed Amount + VAT                  915.00
            Payment amount:  Document total - Withholding          765.00
        """
        self._assert_export_invoice(self.withholding_tax_invoice, 'withholding_tax_invoice.xml')

    def test_withholding_taxes_import(self):
        invoice = self._assert_import_invoice('IT00470550013_withh.xml', [{
            'invoice_date': fields.Date.from_string('2022-03-24'),
            'amount_untaxed': 750.0,
            'amount_total': 765.00,
            'amount_tax': 15.0,
            'invoice_line_ids': [{
                'name': name,
                'price_unit': price_unit,
            } for name, price_unit in self.invoice_lines]
        }])

        for line in invoice.line_ids.filtered(lambda x: x.name in [data[0] for data in self.invoice_lines]):
            withholding_taxes = line.tax_ids.filtered(lambda x: x.l10n_it_withholding_type)
            pension_fund_taxes = line.tax_ids.filtered(lambda x: x.l10n_it_pension_fund_type)
            vat_taxes = line.tax_ids - withholding_taxes - pension_fund_taxes
            self.assertEqual([1, 1, 0], [len(x) for x in (vat_taxes, withholding_taxes, pension_fund_taxes)])

    ####################################################
    # PENSION FUND TAX
    ####################################################

    def test_pension_fund_taxes_export(self):
        """
            Invoice
            -------------------------------------------------------------
            Ordinary accounting service for the year               350.00
            Balance deposit for the past year                      300.00
            Ordinary accounting service for the trimester           50.00
            Electronic invoices management                          50.00
            -------------------------------------------------------------
            Total untaxed:                                         750.00
            Pension fund:    4% of Untaxed Amount                   30.00
            Withholding:     20% of Untaxed Amount                -150.00
            VAT:             22% of Untaxed Amount + Pension fund  171.60
            Document total:  Taxed Amount                          951.60
            Payment amount:  Document total - Withholding          801.60
        """
        self._assert_export_invoice(self.pension_fund_tax_invoice, 'pension_fund_tax_invoice.xml')

    def test_pension_fund_taxes_import_assosoftware_tag(self):
        invoice = self._assert_import_invoice('IT00470550013_pfund.xml', [{
            'invoice_date': fields.Date.from_string('2022-03-24'),
            'amount_untaxed': 750.0,
            'amount_total': 795.6,
            'amount_tax': 45.6,
            'invoice_line_ids': [{
                'name': name,
                'price_unit': price_unit,
            } for name, price_unit in self.invoice_lines]
        }])
        for line in invoice.line_ids.filtered(lambda x: x.display_type == 'product'):
            self.assertEqual(line.tax_ids, (
                self.inps_purchase_tax
                | self.withholding_purchase_tax
                | self.company.account_purchase_tax_id
            ))

    def test_pension_fund_taxes_import(self):
        invoice = self._assert_import_invoice('IT00470550013_pfun2.xml', [{
            'invoice_date': datetime.date(2022, 3, 24),
            'invoice_date_due': datetime.date(2022, 3, 24),
            'invoice_line_ids': [{
                'name': name,
                'price_unit': price,
            } for name, price in self.invoice_lines]
        }])
        for line in invoice.line_ids.filtered(lambda x: x.display_type == 'product'):
            self.assertEqual(line.tax_ids, (
                self.inps_purchase_tax
                | self.withholding_purchase_tax
                | self.company.account_purchase_tax_id
            ))

    ####################################################
    # ENASARCO TAX
    ####################################################

    def test_enasarco_tax_export(self):
        """
            Invoice
            -----------------------------------------------------------------
            Ordinary accounting service for the year                   350.00
            Balance deposit for the past year                          300.00
            Ordinary accounting service for the trimester               50.00
            Electronic invoices management                              50.00
            -----------------------------------------------------------------
            Total untaxed:                                             750.00
            VAT:             22% of Untaxed Amount                     165.00
            ENASARCO:        8.5% of Untaxed Amount                    -63.75
            Withholding Tax: 23% on 50% of Untaxed Amount              -86.25
            Document total:  Taxed Amount                              915.00
            Payment amount:  Document total - Withholding - Enasarco   765.00
        """
        self._assert_export_invoice(self.enasarco_tax_invoice, 'enasarco_tax_invoice.xml')

    def test_enasarco_tax_import(self):
        invoice = self._assert_import_invoice('IT00470550013_enasa.xml', [{
            'invoice_date': fields.Date.from_string('2022-03-24'),
            'amount_untaxed': 750.0,
            'amount_total': 765.0,
            'amount_tax': 15.0,
            'invoice_line_ids': [{
                'name': name,
                'price_unit': price_unit,
            } for name, price_unit in self.invoice_lines]
        }])

        for line in invoice.line_ids.filtered(lambda x: x.name in [data[0] for data in self.invoice_lines]):
            enasarco_imported_tax = line.tax_ids.filtered(lambda x: x.l10n_it_pension_fund_type == 'TC07')
            self.assertEqual(self.enasarco_purchase_tax, enasarco_imported_tax)
            self.assertEqual(-8.5, enasarco_imported_tax.amount)
            self.assertEqual(self.withholding_purchase_tax_23 | enasarco_imported_tax, line.tax_ids.filtered(lambda x: x.l10n_it_withholding_reason == 'ZO'))

    def test_enasarco_tax_import_global(self):
        """Test that if we have a unique ENASARCO line with a price of 0.0,
        the pension fund contribution will be applied on the total amount of
        the invoice instead of the line amount because it's considered as global.
        """
        applied_xml = """
            <xpath expr="//DettaglioLinee[NumeroLinea=1]/AltriDatiGestionali" position="replace"/>
            <xpath expr="//DettaglioLinee[NumeroLinea=2]/AltriDatiGestionali" position="replace"/>
            <xpath expr="//DettaglioLinee[NumeroLinea=3]/AltriDatiGestionali" position="replace"/>
            <xpath expr="//DettaglioLinee[NumeroLinea=4]/AltriDatiGestionali" position="replace"/>

            <xpath expr="//DettaglioLinee[NumeroLinea=4]" position="after">
                <DettaglioLinee>
                    <NumeroLinea>5</NumeroLinea>
                    <Descrizione>Contributo ENASARCO</Descrizione>
                    <PrezzoUnitario>0.00</PrezzoUnitario>
                    <PrezzoTotale>0.00</PrezzoTotale>
                    <AliquotaIVA>22.00</AliquotaIVA>
                    <AltriDatiGestionali>
                    <TipoDato>CASSA-PREV</TipoDato>
                    <RiferimentoTesto>TC07 - ENASARCO</RiferimentoTesto>
                    <RiferimentoNumero>63.75</RiferimentoNumero>
                    </AltriDatiGestionali>
                </DettaglioLinee>
            </xpath>
        """

        invoice = self._assert_import_invoice('IT00470550013_enasa.xml', [{
            'invoice_date': fields.Date.from_string('2022-03-24'),
            'amount_untaxed': 750.0,
            'amount_total': 765.0,
            'amount_tax': 15.0,
            'invoice_line_ids': [{
                'name': name,
                'price_unit': price_unit,
            } for name, price_unit in self.invoice_lines]
        }], applied_xml)

        for line in invoice.line_ids.filtered(lambda x: x.name in [data[0] for data in self.invoice_lines]):
            enasarco_imported_tax = line.tax_ids.filtered(lambda x: x.l10n_it_pension_fund_type == 'TC07')
            self.assertEqual(self.enasarco_purchase_tax, enasarco_imported_tax)
            self.assertEqual(-8.5, enasarco_imported_tax.amount)
            self.assertEqual(self.withholding_purchase_tax_23 | enasarco_imported_tax, line.tax_ids.filtered(lambda x: x.l10n_it_withholding_reason == 'ZO'))

    def test_inps_tax_export(self):
        """
            Invoice
            -----------------------------------------------------------------
            Ordinary accounting service for the year                   350.00
            Balance deposit for the past year                          300.00
            Ordinary accounting service for the trimester               50.00
            Electronic invoices management                              50.00
            -----------------------------------------------------------------
            Total untaxed:                                             750.00
            VAT:             0% of Untaxed Amount                        0.00
            INPS:            4% of Untaxed Amount                       30.00
            Document total:  Taxed Amount                              780.00
            Payment amount:  Document total                            780.00
        """
        self._assert_export_invoice(self.inps_tax_invoice, 'inps_tax_invoice.xml')
